DIN 3171-1:2000 Breathing apparatus - Compressed gas cylinders for compressed air and compressed oxygen - Part 1: Seamless steel cylinders, for 300 bar and 450 bar test pressure
2000DIN 3171-1:2000 Breathing apparatus - Compressed gas cylinders for compressed air and compressed oxygen - Part 1: Seamless steel cylinders, for 300 bar and 450 bar test pressure